Historical
AWWA C904-2016
Standard for Crosslinked Polyethylene (PEX) Pressure Tubing, ½ In. (13 mm) Through 3 In. (76 mm), for Water Service
This standard describes crosslinked polyethylene (PEX) pressure tubing made from material having a standard PEX material designation code of PEX 1306, or higher, according to ASTM* F876 and intended for use as underground potable water, reclaimed water, and wastewater service lines in sizes ½ in. (13 mm) through 3 in. (76 mm) that conform to a standard dimension ratio of SDR9. Tubing may incorporate an optional polymeric outer layer. Included in this standard are criteria for classifying PEX plastic tubing materials, and a system of nomenclature, requirements, and test methods for materials and tubing. Methods of marking are given. Design, installation, and application considerations are discussed in the foreword of this standard.
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AWWA: American Water Works Association [awwa]
